After victory over Poland, the Senegalese will hope to confirm a place in the round of 16 when they face off with Japan in their next fixture on scheduled for Sunday, June 24.
There was a suggestion Poland had been caught out unfairly for the second goal when Niang came back onto the pitch after he had been at the touchline while Senegal were about to bring on Cheikj Ndoye for Mame Diouf. Since the World Cup expanded to a 32-team format in 1998, the worst opening round for African teams was in 2006, when Ivory Coast, Ghana, Togo and Angola all lost their first matches and Tunisia drew 2-2 with Saudi Arabia.
Despite putting in a limp and leaden performance himself, Lewandowski seemed to point the finger at his teammates for their errors, which ultimately cost Poland the game.
Poland's record scorer Robert Lewandowski got little change out of a well-drilled Senegal defense, led by Kalidou Koulibaly, and they sorely missed key defender Kamil Glik, still recovering from a training injury sustained two weeks ago.
"We are Senegal, so we are proud to play for our country but I can see that the whole continent is supporting us, too".
Senegal took the lead when Niang went around Lukasz Piszczek on the flank following a restart and centred to Mane. "You saw a Senegal team very solid, very compact".
"They tried more than us and wanted to play football".
They gave the game away in the first minute of added time when Harry Kane completed his brace with the winning goal.
Lewandowski sprang into life five minutes after halftime as he won possession, burst clear and was up-ended by Salif Sane.